Implementing Rules and Regulations of Chapter 2 of the Code on Sanitation of the Philippines on Water Supply

PRINTED IN COOPERATION WITH unicefG United Nations Children's Fund NOT FOR SALE DEPARTMENT. OF HEALTH ENVIRONMENTAL IIEALTH SERVICE Manila, Philippines 1995 IMPLEMENTING RULES AND REGULATIONS OF CHAPTER Il WATER SUPPLY OF THE CODE ON SANITATION OF THE PHILIPPINES (P.D. 856) .. lmple·menting Rules and Regulations of Chapter Il - "Water Supply~' of the Code on Sanitation of the Philippines (P.D. 856) Table of Contents Page No. Section 1 : Scope . . • . . . . . . . . .. • . . . . .. . . . . . . . • . . . . . . . .. • . .. . . . . . . . . . 1 Section 2: Definition of Terms ............................... 1 Section 3: Prescribed Standards and Procedures ...... 4 Section 4: Approval and Permit ............................. 13 Section 5: Types of Water Examination Required .... 15 Section 6: Submission of Water Samples for Laboratory Examination ....................... 15 Section 7: Other Protective Measures .................... 16 Section 8: Special Provisions .................. , ............. 16 Section 9: Penal Provision ..................................... 18 Section 10: Separability Clause ............................... 19 Section 11: Repealing Clause .................................. 1 9 Section 12: Effectivity ........................................... 19 30 October 1995 IMPLEMENTING RULES AND REGULATIONS OF CHAPTER 11- "WATER 'SUPPL Y" OF THE CODE ON SANITATON OF THE PHILIPPINES (P.O. 856) To carry out the provfsions of Chapter Il - "Water Supply" of the Code on Sanita­ tion of the Philippines, these rules and regulations are hereby formulated for imple­ mentation and strict compliance of ail concerned. SECTION 1 SCOPE These implementing rules and regulations shall apply to ail public and private water supply system project planned by any government agency or instrumentality includ­ ing government-owned or controlled corporations, private organizations, firms, in­ dividuals or other entities. SECTION 2 DEFINITION OF TERMS C. As used in these rules and regulations, the terms below shall be defined as follows: 1, Artesian Weil - a well where water is confined under hydrostatic pressure between two relatively impervious layers such as rock formations. 2. Bored well - a well constructed by manually driven augers into the ground. 3. Cistern - a water-tight tank used to store water. 4. Coliform Organisms - any rod-shaped, non-spore-forming, gram negative bac­ teria capable of growth in the presence of bile salts, or other surface-active agents with similar growth-inhiblting properties which are cytochrome-oxidaze negative and able to ferment lactose at either 35°C or 37°C with the produc­ tion of acid, gas and aldehyde within 24-48 hours. 5. Complete Treatment - a series or combination of water treatment processes which shall include coagulation, adsorption, sedimentation, slow and rapid sand filtration, aeration and chlorination. 6. Contamination - a general term referring to the introduction of materials not normally .. found in water that make the water less desirable or unfit for its intended use. 7. Deep Well - a well with depth greater than 20 meters constructed in areas characterized by aquifers or water-bearing formations generally located at a depth of more than 20 meters below ground surface. 8. Department - the Department of Health. 9. Disinfection - water treatment processes designed to destroy disease-caus­ ing organisms. The efficacy of disinfection is often asessed by measuring the coliform group of indicator organism. 10. Doubtful Source - a water supply facility or source that is subject to re­ contamination (e.g. open dug well, unimproved spring, surface water). 11. Drilled Well - a well constructed by percussion or rotary drills. 12. Drinking Water - water intended for direct human consumption or for use in food preparation. 13. Driven Well - a well constructed by driving an iron pipe with a well point at lower end into the ground water bearing stratum. 14. Dug Weil - a well normally circular or rectangular in shape, with diameter ranging from 1 to 1.5 meters. After the well is dug, it is necessary to put a lining made of permanent materials like masonry, brickworks of reinforced concrete which serve as protection against surface or outside contamination. An open dug well shall mean a well dug manually or mechanically to draw water by use of bucket or any container attached to a rope. 15. Groundwater - that portion of the rainwater which has percolated into the earth to form underground deposits called aquifers. 16. Level 1 (point source) - a protected well or a developed spring with an outlet but without distribution system, generally adaptable for rural areas where the houses are thinly scattered. A Level I facility normally serves around 15 households. 17. Level Il (communal faucet system or standposts)- a system composed of a source, a reservoir, a piped distribution network and communal faucets, generally suitable for rural and urban fringe areas where houses are clustered densely to justify a simple piped system. Usually, one faucet serves 4 to 6 households. 18. Level Ill (waterworks system or individual house connections) - a system with a source, a reservoir, a piped distribution network and household taps, generally suited for densely populated urban areas. · 19. Local Health Authority - a government official or employee responsible for the application of a prescribed health measure in a local political.subdivlsion. lt is the provincial governor, city or municipal mayor, as the case maybe. 20. Local Health Officer - the provincial, city or municipal health officer. 21. MPN (Most Probable Number) - a statistical method of determining microbial populations. A multiple dilution tube technique is utilized with a standard medium and observations are made for specific individual tube effects. Resultant coding is translated by mathematical probability tables into population numbers. 22. Pipe Unes - pipes used to transport water. 23. Polluted Water - water whose physical, chemical, bacteriological, biological and radioactive properties have been altered due to the presence of domestic sewage, industrial waste or other substances in water that are possibly objectionable or harmful to human lives. 24. Potable Water/Safe Drinking Water - water that is free of microorganisms or disease-producing bacteria {pathogens). ln addition, the water should not possess undesirable taste, odor, color, levels of radioactivity, turbidity or chemicals and it should pass the standards of the Philippine National Standards for Drinking Water. 25. Public or Private Water Supply Sytem - a government or private owned system for the provision of potable water for human consumption. The water system could either be of Level 1 (point source), Level Il (communal) or Level Ill (waterworks) type. The system includes a) any collection, treatment, storage and distribution facilities under the contrai of the operator of such system and used primarily in connectlon thereto: and b) any collection, pre­ tr~atment, or storage facilities not under the contre/ of the operator of the system which are used primarily in connection with such system. 26. Reservoir - a pond, lake or basin, either natural or artificial, designed for storage, regulation and contrai of water. 27. Sanitary Engineer - a persan duly registered with the Board of Examiners for Sanitary Engineers (A.A. 1364} and who heads the sanitation division or section or unit of the provincial/city/municipal health office or employed with the Department of Health or its regional field.health units. 28. Sanitary Seal - a mixture of cernent and water placed in the annular space of the well casing and drillhole to seal space and about 3 meters deep to prevent the intru~ion of water. 29. Sanitary Survey - an activity to inspect and investigate the existing environmental conditions a round the water source which may affect the quality of the water. 30. Sanitation lnspector - a government official or personnel employed by the national, provincial, city or municipal government, who enforces sanitary rules, laws and regulations and implements environmental sanitation activities under the supervision of the provincial/city/municipal health officer/sanitary engineer. 31. Secretary - the Secretary of Health. 32. Shallow Well - a well measured from the natural ground surface with a depth of not more than 20 meters. 33. Springs - ground water seepage visible at the earth's surface due to hydrostatic gradient or head. 34. Surface Water- a mixture of surface run-off and groundwater. Surface sources include rivers, lakes, streams, ponds and impounding reservoirs. 35. Test Well - an excavation made to determine the quality and quantity of water. 36. Water Hauler - any persan, firm or company who transports, stores, delivers and operates equipment used to transport or deliver water for human consumption. 37. Water Supplier- any entity, government or private company, responsible for source development, water abstraction, treatment and distribution of water. 38. Weil - a man made hole used for recovering ground water from the water bearing strata by digging, boring, d~illing or by any other method. 39. Well Driller - an individual, partnership, corporation, cooperative and the like who undef1ake well drilling work or. activitles for the purpose of extracting ground water. SECTJON3 PRESCRIBED STANPARDS AND PROCEDURES 3.1 Standard Parameters and Values for Drinking Water Before water is used, distributed o~ sold for drinking, it should pass the criteria on standard parameters and valu,s for bacteriological, physical, chemical, biological and radiological quality set by the Philippine National Standards for Drinking Water. 3.2 Water Treatment Treatment is necessary so as to render water supply potable. The degree and manner of treatment will depend on the quality of the raw water, however, the bacteriological quality shall be used as the main criterion. No water supplier shall be allowed to operate water system for public use unless necessary treatment has been provided. For the purpose of classifying and evaluating raw-water quality with respect toits treatment requirements, the following criteria shall be used: 1. Group 1. Water Requlring DisinfectionOnly: Water from underground or surface sources subject to a low degree of contamination, anâ having a MPN of coliform organisms not exceeding 50 per 1 00 ml. 2. Group l!. WaterRequiringCompleteTreatment:Waterfrom underground or surface sources having a MPN of coliform organisms 50 per 100 ml. to riot more than 5,000 per 100 ml. 3.3 Water Disinfection a. Disinfection of water supp!y facilities shall be required for the following: 1. Newly constructed water supply facilities. 2. Water supply facility that has been repaired/improved. 3. Ali existing water facilities that exceeded the bacteriological value set by the Philippine National Standards for Drin king Water. 4. Ali water facilities that require continuous disinfection. 5. Drinking water collected from a doubtful source. b. Disinfectant Chlorine shall be used as main water disinfectant. Other disinfectant shall be used provided that it has residual effect to ensure disinfecting capacity in the distribution system. c. Responsible Agencies/Persons for Disinfection .. Water disinfection shall be the responsibility of the following as shown on the table: d. Requirements for Chlorination of Level Il and Ill Water Supplies. Type of Water Agencies/Persons Persan Supply Responsible for Responsible Disinfection Public Level 1 BWSA, Barangay Caretaker with (wells,·springs) Official and Sanîtation Local Health lnspector (SI) Agency Levels Il & Ill Water Supplier Waterworks (e.g. MWSS, LWUA Personnel or water district} Private Wells lndividual/ Owner Private Owner withSI technical assistance 1. Appropriate chlorination equipment shall be installed to ensure continuous and effective disinfection. a. Chlorination equipment shalf have a capacity of at least 50% greater than the highest expected dosage to be applied at anytime to attain satisfactory operation. b. Automatic proportioning of chlorine dosage to the rate of flow of treated water shall be provided at ail plants where rate of flow varies more than 50% above or below the average flow. Manual contrai is permissibfe when rate of flow is relativefy uniform or an attendant is present to effect dosage adjustments. c. Standby units shall be provided to ensure continuous operation. d. Solution of calcium hypochlorite shall be prepared in a separate mixing tt;ink, diluted and allowed to settle so that only clear supernatant liquid is withdrawn from the solution storage tank and to the chlorinator. e. Devices and instruments for the determination of the amount of daily chlorine dosage and chlorine residual shall be provided. 2. Suitable gas mask or self-contained type breathing apparatus and a small bottle of fresh ammonia solution to test for chlorine leakage shall be provided and shall be accessible outside the chlorination room. 3. - Safety measures for gas chlorination equipment and chlorine storage shall include a separate building or room !l,IJbject to the approval of the Department of Health. 4. Adequate floor lever ventilation shall be provided for all enclosures where chlorine is being fed or stored. 5. Free residual chlorine shall be maintained between 0.20 to 0.50 ppm until water reaches the consumer and the farthest point in the distribution system. e. Requirements for Complete Chlorination of Level I Water Supply Facility 1. A dose of 50-100 ppm chlorine solution shall be used in °disinfecting Level I water supply facility, (See Annex - Chlorlne Requirement to have 50-1 00 ppm dosage) 2. The persan who will conduct the chlorinatjon shaH observe persona! hygiene and must be free from communicable disease. 3. Procedures to follow on disinfection. a. lmproved Dug Weil. i. Scrub interior walls of the·casing or lining and splash with chlorine solution (50-100 ppm) to ensure thorough contact of solut,ionto the-surface. ii. Wash the exterior surface of the pump cylinders and drop pipe with chlorine solution as the assembly is lowered into the well. iii. Return caver of the well and pour chlorine solution through a manhole or pipe sleeve opening before inserting the pump cytinder and drop pipe assembly. After setting the pump, draw out water from the well until strong odor of chlorine is noted. iv. After 1 2 hours, flush out well water by pumping water to waste untilthe drawn water is free from chlorine .. odors. Rinse the exterior surface and the pump cylinder with potable water. b. Drilled, Driven and Bored WeUs i. Slowly pour ch!orine solution into the well just before installing the permanent pumping equipment. Dilution of chlorine is faci!itaJed by alternately raising or lowering the waterhose or pipe line. ii. Wash the exterior surface of the pump cylinders and drop pipe with chlorine solution as the assembly is lowered into the well. m. After the pump has been set, operate the pump until water is discharged. iv. Allow chlorine solution to remain in the well for 12 hours. For deep well, a special method maybe employed as follows: Place the granulated calcium hypochlorite in a eut short pipe capped at both ends. Small hales are dril!ed at each cap or sides of the pipe. One cap is fitted with an eye for cable attachment. Disinfecting agent is diffused by vertical movement of the eut short pipe. V. After 12 hours, draw out well water. The pump is to be operationàl when pumped water is free from chlorine odor. ~ c. Spring i. Disinfection of spring intake box is similar ta the procedure used for improved dug wells. ii. If the flow cannot be controlled, continuous supply of disinfectant shall be provided. d. Cistern i. The cistern shall be thoroughly cleaned by using a stiff brush or broom to clean interior wells. ii. Drain and caver the cistern. iii. Fill the cistern with adequate potable water and add 50-100 ppm chlorlne solution. iv. Pump water from the cistern and note the presence of strong chlorine odor in the entire water distribution system. v. Retain the disinfectant in the cistern for 24 hours then examine for residual chlorine and drain. vi. Flush the system with potabîe water to remove all traces of chlorine. f. Requirements for Household Container Disinfection 1.· Procedures to Follow 1.1 Prepare a stock solution by dissolving 1 level teaspoon of powder Chlorine compounds (65 to 75% available chlorine) to one liter of water. This stock solution is effective only for one week. 1.2 Add two teaspoons of stock solution to 5 gallons (20 liters) of water. Mix thoroughly and let it stand for at least 30 minutes before using. 3.4 Standard Construction and Operating Procedures a. Ground Water Source 1. Well 1 .1 The location of well site shall conform with the following requirements: .. a. No well site shall be located within a distance of less than 25 meter radius on fiat areas from sewage treatment plant, sewage wet well, sewage pumping station, or a drainage ditch which contains industrial waste discharges or wastes from sewage treatment systems, sanitary landfill or land irrigated by sewage treatment plant effluent, sanitary sewers, septic tanks, cesspools, open­ jointed drain-fields, animal feed lots or livestock in pastures, dump grounds, especially in limestone areas. Storm and sanitary sewers located within specified distances shall be so constructed as to prevent leakage. b. The driling of water well within 50 meter distance from a cemetery is prohibited. 1.2 During drilling operation, the following requirements shall be observed: a. The premises, materials, tools, and drilling equipment shaU be properly maintained to minimize contamination of underground water. b. Water used in drilling operation shall be potable. c. Slush pit shall be constructed and maintained to minimize contamination of the drilling mud. d. Approved type of pit privy or toilet facilities for use of drilling personnel shall be provided. These facilities shall be located 25 meters from the well being drilled. Upon completion of the constructed well, toilet facilities if temporarily constructed shall be removed in a satisfactory manner. No temporary and permanent toilet faciliti~s shall be maintained within 25 meters from the well being constructed unless they are of the sealed or leak proof types. 1.3 Casing materials used in the construction of public wells shall conform with the American Standards for Testing Materials (ASTM). The casing shall extend at least to the depth of the shallowest water formation or deeper if necessary to omit undesirable water bearing stràta. 1.4 The annular space between the casing and the drill hole shall be sealed with neat cernent grout to the minimum depth of 3.0 meters for shallow wells and 10.0 m for deepwells. ~ 1.5 ln ail cases, provide a concrete apron at least 2 meter square around the well head, sloped not Jess than 2% to drain away excess water. 1 .6 Provide vent with #16-mesh corrosion resistant screen, faced downward and elevated to minimize drawing of contaminants into the well. Séal well heads and pump bases using gaskets, sealing compounds and proper venting to prevent possible contamination to the well water. 1 . 7 A complete physical and chemical analysis of water from a new well shall be conducted after 36 hours of pumping out of water is done. 1.8 If the results show that the water is bacteriologically positive ( +), appropriate water treatment facilities shall be provided, otherwise the well shall be abandoned. The well shall be disinfected in accordance with the standard requirements set by these implementing rules and regulations. Collect two water samples for two week interval for bacteriological analysis. 1.9 When contamination of a well water source has been confirmed by laboratory test and the sources of contamination is definitely known but cannot be removed, the well must be condemned. The well opening must be plugged or sealed with concrete or other similar materials. If used for other purposes like watering gardens and washing clothes a signboard marked "WATER UNFIT FOR DRINKING" shall be installed. 1.10 Pump site, rapid pump room location and pump installation: a. Ali completed well units shall be preferably protected by fences, the gates provided with locks, or enclosed to prevent possible contamination or damage of facilities by trespassers .. b. The well site shall be properly graded to insure proper ground maintenance and to draw off surface water effectively from the well, ln all cases, provide a system that draws off water from the pump well, leakage from packed gravel, and floor drainage, by installing suitable drain pipes located at the edge of the concrete floor to prevent ponding a round the well head. This waste water shall be properly disposed. Drains shall not be directly connected to storm or sanitary sewers. 2. ' c. ln water supply installation at subground level, pump rooms and pump pits are prohibited. Pump room floor shall be at least 60 cm. above the highest known flood level and/or adequately protected from possible damage by flood waters. Spring a. lntake box or enclosure must be watertight, made of concrete, vitrified tile or other material extending to the water bearing strata down to the bed rocks or other impervious formations. b. The intake box must be provided with a water tight caver which extends over the top edge of the spring box at least 50 mm. c. A drain pipe with an exterior valve is to be placed close to the sring box near the bottom. The pipe shall extend horizontally so as to clear the normal ground level at the point of discharge by at least 150 mm. The discharge end of the pipe shall be screened to prevent the entrance of redents or insects. d. The spring is to be provided with screened overflow pipe located slightly below the maximum water level elevation. A drain apron is to be provided to prevent soil erosion at the point of overflow discharge. e. The supply outlet from the developed spring is to be located about 150 mm. above the drain outlet and screened. f. Manhole opening shall have a watertight curb with edges projecting a minimum of 100 mm. above the level of the surrounding surface. The edges of the manhole cover shall overlap the curb and project downward a minimum of 50 mm. g. h. i. Care shall be taken in casting openings to insure watertight connection between the wall and the openings. A drainage ditch located at least 25 meters away on the uphill side of the spring sha11 be constructed to prevent contamination and flooding of the water source. The intake box shall be properly enclosed preferably constructed of strong materials. The height of the fence shall be at least 1-1 /2 meter high. The enclosed area shall be maintained clean to eliminate harborage and breeding of insects. fi '.)) :I J j. Washing and bathing within 25 meters radius of the spring is prohibited. k. Protecton of the entire catch ment area is a must. No dwellings shall be constructed within the catchment area and it shall be off-limits to people and animais. 1. Collect water samples regularly as prescribed by the Philippine National Standards for Drinking Water. 3.5 Monitoring Scheme The local health authority shall establish a Water Surveillanc~ Program thru the creation of Local Drinking Water Quality Monitoring Committee to oversee the operation of the water systems and the quality of water produced and distributed by them and to monitor the implementation of the provisions of these implemel')ting rules and regulations. a. b. Composition The Local Drinking Water Quality Monitoring Committee shall be composed of but not limited to representatives from: i. Municipal/City Health Authority•Chairmân ii. Rural Health Unit/City Health Department iii. Water Districts/Private Water Suppliers iv. Sangguniang Panlalawigan/Panlungsod/Bayan v. Municipal/City Engineer's Office vi. Department of Environment and Natural Resources Representative (CENRO) vii. Non-Govemment Organizations and Professional Groups Related to Health and Sanitation viii. DOH Representative to the Local Health Board ix. Provincial Health Office (Provincial Sanitary Engineer) Functions of the Committee The committee shall be responsible for: i. Regular collection/analysis of water samples; ii. Evaluating laboratory results as to their compliance to standards; iii. Conducting regular or immediate sanitary survey during the existence of a potential cause of contamination; SECTION4 1v. lnstituting remedial measures to correct the deficiency of the water system; v. lnforming the public of the latest quality of the drinking­ water in the locality; and vi. Pe.rforming other functions related to water qua/ity assurance. APPROVAL AND PERMIT The approval of the Secretary or that of his duly authorized representative is required under each of the following cases: a. Sites of Water Sources before their Construction. Any person who intends to drill, construct, alter or repair water supply system, shall secure a Drin king Water Site Clearance from the local health authority prier to the start of the work. The approval of the application shall be based t>n the recommendations made by the local health officer after the conduct of the sanitary survey. The sanitary survey report shall contain all pertinent information concerning the water source and possible sources of contamination. Major water supply projects particularly of surface water sources that fall under the Environmental Impact Statement System are exempted from site clearance requirements, provided an Environmental Health Impact Assessment has been conducted as part of the Environmental Impact Assessment. If the work on the individual water supply system failed to commence within six (6) months from date of issuance, the site clearance shall automatically expire. b. Delivery of Water to Consumers from New or Recently Repaired Water Systems. Permit to deliver water to consumers from new or recently repaired water systems shall be granted only if: 1. Final inspection by the local health officer proves that the water supply system was constructed in accordance with the submitted plans and specifications. 2. The disinfection of water supply system conformed with Section 3.3 Water Disinfection of these rules and regulations. 3. Results of laboratory analysis proved that the water quality meets the Philippine National Standards for Drinking Water. 4. The water supplier or the owner of the completed water supply system shall notify the local health officer of the completed system. c. Resumptions of the Operation of Water Supply System. 1. ln cases when water supply is found to be unsafe or unfit for human consumption, the operator of the system, shall be ordered to: a. Stop temporarily to màke necessary corrections within a specified period. b. Provide substantial quantity and good quality of water to the affected consumers during the correction period. Failure to provide emergency water supply shall be subjected to fines and penalties. A permission to re-operate from the local health. authority upon the recommendation of the local health office shall be given only when all defects have been corrected and the water found safe for drinking and domestic use. d. Plans and Specifications of Water Systems of Subdivision and Projects prior to the Construction of Housing Units thereat. 1. To obtain approval for the construction of any water supply system, the applicant shall submit the plans and specifications of the proposed systems, and satisfy the standard requirements of these implementing rules and regulations. Plans and specifications shall be pl'epared by a registered civil/sanitary engineer, the seal, signature and registration number of the engineer or the engineering firm shall be imprinted on each sheet of the plan. 2. An engineering report or feasibility study of the new system Shall be submitted with or priorto the submission of the plans and specifications. The report cave.rage shall include the following items. 2.1 Statement of the problem or problems. 2.2 Present and future areas to be served, with population data. 2.3 The source, quantity and quality of water. 2.4 Present and estimated future maximum and minimum water quantity demands. 2.5 Description of the proposed site and the immediate surroundings of the waterworks units. 2.6 The type of water treatment, equipment and capacity of units. 2. 7 Basic design data, pumping capacity, water storage, and flexibility of.system operation. 2.8 Adequacy of facilities concerning volume/quantity and pressures in the whole system. 2.9 Cost estimate of the tacilities and source of funds for the project. 2.1 O Sustainability and maintenance. 3. For subdivision having groundwater source, report on the estimated specitic yield of the aquifer and other results of the pumping tests shall be submitted together with the borehole logs. 4. Two (2) sets of all plans and drawings shall be submitted which: 4. 1 lndicate location of all facilities pertinent to the specific project. 4.2 If phase construction is anticipated, the overall plan shall be presented, though a portion of the construction is approved. 4.3 A plan of the subdivision or other housing projects ta be served. e. Certification of the Potabi!ity of Drînking Water No public water system shall be allowed ta operate without a Certificate of P'otability issued by the Secretary of Health or his duly authorized representative. This certificate is issued only after the required examinations are performed and the quality of water from the system meets the requirements of the Philippine National Standard for Drinking Water. The certificate is re-validated every after examinations based on the standard interval or frequency of sampling. SECTION 5 : TYPES OF WATER EXAMINATIONS REQUIRED The following examinations are required for drinking water: a. Initial examination - the physical, chemical and bacteriological examinations of water from newly constructed systems or sources are required before they are operated and opened for public use. Examination of water for possible radioactive contamination should also be done initially. b. Perîodic examination - water from existing sources is subject to bacteriological examination as often as possible but the interval shall not be longer than six months, while the general systematic physico-chemical examination shall be conducted every 12 months or oftener. Examination of water sources shall be conducted yearly for possible radioactive contamination. SECTION 6 SUBMISSION OF WATER SAMPLES FOR LABORATORY EXAMINATION a. The examination of samples of drinking water shall be performed only in laboratories (private/government) whièh are duly licensed and accredited by the Department of Health. lt is the responsibility of operators of water systems ta submit ta accredited laboratories water samples for examination in a manner and at intervals prescribed in the Philippine National Standards for Drinking Water. b. Any person, firm or corporation desiring to establish or operate and maintain . a water analysis laboratory shall apply to the Bureau of Research and Laboratories - Department of Health through the Regional Field Health Office.· Approval of the- accreditation shall be based on the prescribed requirements of the Department as stated in Administrativ e Order No. 31 series 1979, Water laboratories maybe accredited for separate services Üke bacteriological, chemical, radiological, physical, biological or for a combiriation of two or more or all of these services. SECTION 7 ; OTHER PROTECTIVE MEASURES Ta protect drinking water from contamination, the following measures shall be observed: a. Washing clothes or bathing within a radius of 25 meters from any well or other source of drinking water is prohibited. b. No artesians, deep or shallow well, shall be constructed within 25 meters from any source of pollution. c. No radioactive source or IT)aterial shall be stored within a radius of 25 meters from any well or source of drinking water unless the radioactive source is adequately and safely enclosed by proper shielding. d. No persan charged with the management of a public water supply system shall permit any physical connection between its distribution system and that of any other water supply, unless the latter is regularly examined as toits quality oy those in charge of the public supply to which the connection is made and found ta be potable. e. The installation of a booster pump from the water distribution line of a water supply system is prohibited. SECTION 8 SPECIAL PROVISIONS a. Water Peddlers and Haulers 1. Sanitary Permit Any person, firm or company engaged in water haufrng and vending of water for human consumption shall secure a sanitary permit from city/ municipal health officer based on the requirements of these ru les and regulations. 2. Health Certificate Water peddlers and haulers shall undergo physical and medical examinations to obtain a health certificate from the local health officer which shall be renewed every year. Water haulers and peddlers without health certificates or with expired health certificates shall be prohibited from water hauling and peddling. 3. Source of Water Water peddlers/haulers are required to obtain water from sources with valid Certificate of Potability as specified in Section 4 of these implementing rules and regulations. 4. Water Containers .. Water containers shall be made of plastic or tin materials and so designed to facilitate easy cteaning. The containers shall be cleaned and disinfected before they are filled with water and shall be provided with tight-fitting covers. 5. Personal Hygiene Ali water peddlers and haulers shall be required to observe proper persona! hygiene especially washing of hands with soap and water before working and after using the toilet. J. Drinking Water on Vessels 1. Vessels crulsing from one point to another shall carry adequate supply of potable drinking water for the use of the crew and passengers. 2. Drinking water shall be obtained from water sources with certificate of potability and stored in tanks specified in the next paragraph. 3. The storage tanks shall be water tight and independent of the hull of the vessel. A drain valve attached to the bottom of the tank shall discharge into the interior of the vessel. Manholes, inlets or openings of such tanks shall be securely provided with caps, flanges, covers and gaskets. Soil, waste, vent or drain pipes shall not pass through any water storage tank. The water storage shall be clearly marked 11 FOR DRIN KING WATER ONLY". 4. A water storage tank shall be emptied, cleaned, drained and flushed every quarter. 5.' The drinking water shall be handled in accordance with the following procedures: A. hase or pipe used to transport drinking water in a vessel shall not be used for any other purposes. lt shall be handled and maintained in a sanitary manner. The hose end when not in use shall be plugged or capped with screw caps to prevent contamination. lt shall be propely stored in a closed cabinet near filling line and clearly labelled "FOR DRINKING WATER ONLY". Pumps used for the delivery of drinking water shall not be used for any other purpose. 6. Lead pipes shalt not be used in any part of the drinking water systems. 7. Communal drinking glasses shall be thoroughly cleaned and sanitized before every use. Paper/plastic disposable individual drinking cups shall be properly disposed after each use. Drinking fountains may be provided by in accordance with the Department of Health standards and specifications. 8. A warnlng sign, "NOT FOR DRIN KING", shall be permanently posted on tap hydrant or faucet with unsafe water. 9. Non-potable water shall not be permitted in the galleys or kitchen. 1 O. The pipes and storage tanks of the drinking water supply system shall be painted aqua blue and "DRIN KING WATER" or "!NUMING TUBIG 11 printed bold in contrasting colors. 11. Vessels shall maintain free residual chlorine between 0.20 ppm to 0.50 ppm in drinkîng water. This shall be checked randomly by the local health officer or quarantine medical officer, as the case maybe. 12. Monitoring of storage tanks as to cleanliness shall be conducted every quarter by the local health officer or quarantine medical officer, as the case maybe. SECTION 9 PENAL PROVISION a. b. Any person who shall violate, disobey, refuse, omit or neglect to comply with any of.the provisions of these implementing rules and regulations, shall be guilty of misdemeanor and upori convicton shall be punished by imprisonment for a period of not exceeding six (6) months or by a fine of not exceeding P1 ,000.00 or both depending upon the discretion of the court. Any person who shall interfere or hinder, or oppose any officer, agent or member of the Department of Health or of the bureaus and offices under it, provincial, city or municipal health officers, sanitary engineers and sanitation inspectors in the performance of his duty as provided for under these rules and regulations, or shall tear down, mutilate, deface or alter any placard, or notice, affixed to the premises in the enforcement of these rules and regulations shall be guilty of misdemeanor and punishable upon conviction by imprisonment for a period of not exceeding six (6) months or by a fine not exceeding P1 ,000.00 or both depending on the discretion of the court. SECTION 10 : SEPARABILITY CLAUSE ln the event that any rule, section, paragraph, sentence, clause or words of these implementing rules and regulations. is declared invalid for any reason, the other provisions thereof shall not be aff ected therêt>y. ·SECTION 11 : REPEALING CLÀUSE · Ali pertinent rules and regulations which· are inconsistent with the provisions of these implementing rules and regulatlons are hereby repealed or amended accordingly. SECTION 12 : EFFECTIVITY The se ru les and regulations shall take effect fifteen i 15) days from date of publication in the official gazette or a newspaper of general circulation. Approved on this 24th day of November nineteen hundred and ninety five. .. t /~~a .... (1' HllARIONJ. RAMIRO, Jif, M.D., M.H.A. Date of Publication: 29 January 1996 Philippine Daily lnquirer Secretary of Health ANNEX DISJNFECTJON OF WELLAND WATER CONTAINER The following tables give the amount of Calcium Hypochlorite (70%) availab!e chlorine required to provide a dosage 50 ppm to 100 ppm of available chlorine. 1. 2. Diameter of Capacity in gallons Amount of Calcium Hypochlorite in Casing per foot of depth ounces/grams per foot of depth 50 ppm Column 1 Column 2 Column 3 2 inches 0.16 0.001152/0.0432 4 inches 0.66 0.00628/0.1783 6 inches 1 .47 0.01397/0.3967 8 inches 2.61 0.02484/0. 7054 10 i11ches 4.08 0.03884/1.10305 12 inches 5.88 0.0557/1.5895 HOWTO USETHETABLE To find the volume of water ir the well: 100 ppm Column 4 0.00305/0.0866 0.01256/0.3587 0.02799/0. 7949 0.04969/1 .411 2 0.07768/2.2061 0.11196/3. 7096 Multiply the amount of gallons specified in the table (Col. 2. ·opposite the given diameter) by the depth of the water in foot. Example Given Diameter of casing Depth of Water Therefore, Volume of Water = 6 inches (Col. 1) = 100 feet = 1.47 (Col. 2) x 100 = 147 Gals. To find the amount of calcium hypochlorite (70%) available chlorine to disin­ tect a well: Example : (a) Diameter of Weil = 6inches Given Depth of Water = 100 feet Therefore, amount of hypochlorite = 0.02799 (Col. 4) x 100 = 2.9 inches of 5 ounces/79 grams (b) Same well as (a) Dosage = 50 ppm (Col. 3) Therefore, amount of Calcium Hypochlorite = 0.01397 (Col. 3) x100 = 1,397 ounces or 3.5 ounces/42.6 grams NOTE: If a weighing scale is not available, the chemical may be measured with spoon. 1 ounce weights approximately 3 level tablespoons 1 ounce weights approximately 2 moderately l'leaping tablespoons one (1) pound =. 16 ounces (1) ounce = 28.4 grams Chlorine (grams) = Vol. of H20 in gallons x 8.34 x dosage required i11 ppm x 454 1,000,000 x % of available C1 2 ANNEX TABLE 1 CALCIUM HYPOCHLORITE FOR 50 ppm DOSAGE DEl1TH OF WELL D!AMETER WATER COLUMN 2· 3• 4• 6" a· 10· IMI 50mm 75mm 100 mm 150 m 200 mm 250 mm 1 - - 1/4 tsp 1/41sp 1 /2 tsp 314 tsp 2 - 1/4 tsp 1/4 tsp 1 /21sp 3/4 tsp 1 1 /2 tsp 3 - 1/4 tsp 1/2 tsp 3/4 tsp 1 1 /2 tsp 2 1 /4 tsp 4 1/4 tsp 1/4 tsp 1/2 tsp 1 tsp 1 3/4 tsp 2 3/4 tsp 5 1/4 tsp 1 /2 tsp 1 /2 tsp 1 1 /41sp 2 114 tsp 3 112 tsp 6 1/4 tsp 112 tsp 1 /2 tsp 1 2/2 tsp 2 115 tsp- 4 1 /4 tsp 7 114 tsp 112 tsp 314 tsp 1 3/4 tsp 3 1/4 tsp 5 tsp 8 114 tsp 1/2 tsp 314 tsp 2 tsp 3 1/2 tsp 5 1/2 tsp 9 1 /4 tsp 1 /2 tsp 1 tsp 2 1 /4 tsp 4 tsp 61/2tsp 10 1/4 tsp 1 /2 tsp 1 1/4 tsp 2 1/2 tsp 4 1/2 tsp 7 tsp 20 112 tsp 1 1 /4 tsp 2 1/4 tsp 5 tsp 9 tsp 7 tbsp 30 3/4tsp 1 3/4 tsp 3 1/2 tsp 7 112 tsp 6 3/4 tbsp 10 1/2 tbsp 40 lc.1 /4 tsp 2 1 /2 tsp 4 1/2 tsp 5 tbsp 9 tbsp 14 tbsp 50 1 1 /2 tsp 3 1/4 tsp 5 1/2 tsp 6 1/4 tbsp 11 1 /4 tbsp 171/2tbsp 60 1 1 /2 tsp 3 3/4 tsp 6 3/4tsp 7 1 /2 tbsp 13 1/2 tbsp 21 tbsp 70 2 tsp 41/2 tsp 7 3/4 tsp 8 3/4 tbsp 15 3/4 tbsp 24 1/2 tbsp 80 2 1/4 tsp 5 tsp 9tsp 10 !bsp 18 tbsp 281bsp 90 2 1 /2 tsp 5 1/2 tsp 5tbsp 11 1 /2 lbsp 20 1/4 tbsp 31 1 /3 tbsp 100 2 3/4 tsp 61/2 tsp 5 1/2 tbsp 12 1/2 tbsp 22 1 /2 tbsp 35 lbsp ANNEX TABLE 2 CALCIUM HYPOCHLORITE FOR 100 ppm DOSAGE DEPTH OF WATER COLUMN 2· 3• !Ml 60mm 75mm 1 - 1/4 tsp 2 1/4tsp 1/4 tsp 3 1/4 tsp 1/2 tsp 4 1/4 tsp 1/2 tsp 5 1/4tsp 1 /2 tsp 6 112 tsp 3/4 tsp 7 1/2 tsp 3/4 ISP 8 112 tsp ltsp 9 112 tsp 11/4tsp 10 112 tsp 1 1/4tsp 20 1 1 /4 tsp 2 1/2 tsp 30 1 1 /2 tsp 3 3/4 tsp 40 2 1/4tsp 5 tsp 50 2 3/4 tsp 6 1 /2 tsp 60 3 112 tsp 7 1 /2 tsp 70 4tsp 8 3/4 tsp 80 4 112 tsp 5tbsp 90 6 tsp 5 3/4tbsp 100 5 1/2 tsp 6 1/4 tbsp LEGEND: 1 tsp -= 1 TEASPOON 1 tbsp -= 1 T ABLESPOON 4• 100 mm 1 /4 tsp 1 /2 tsp 112 tsp 314tsp 1 114 tsp 1 1/2 tsp 1 1/2 tsp 1 3/4 tsp 2tsp 2 1/4 tsp 4 112 tsp 6 3/4 tsp 9tsp 5 1/2 tbsp 6 3/4tbsp 8tbsp 9 tbsp 10tbsp n 1/4tbsp 5 GRAMS 10 GRAM$ WELL DIAMETER 6" 8" 10· 150 m 200 mm 250 mm 1 /2 tsp 3/4 tsp 1 1 /2 tsp 1tsp 1 3/4 tsp 2 3/4 tsp 1 1 /2 tsp 2 1 /2 tsp 4 1/41SP 2 tsp 3 112 tsp 5 1 /2 tsp 2 1 /2 tsp 4 1 /2 tsp 7 tsp 3 tsp s 112 tsp 8 1/2 tsp 3 1 /2 lsp 6 1/4 tsp 9 3/4 lsP 4tsp 71/4tsp 5 1/2 tbsp 4112 lsp 8 tsp 6 1/4tbsp 5 tsp 9 tsp 7 tbsp 5 tbsp 9 tbsp 14 tbsp 7 112 tsp 13 1 /2 tbsp 21 tbsp 10 tbsp 18 tbsp 28 tbsp 12 1/2 tbsp 22 1 /2 tbsp 35 tbsp 15 tbsp 27 tbsp 42 tbsp 17 3/4 tbsp 31 112 tbsp 49 tbsp 20 1/4 tbsp 36 tbsp 56 tbsp 22 3/4 tbsp 40 1 /2 tbsp 63tbsp 25 1 /4 tbsp 45 tbsp 70 tbsp 12" 300mm , tsp 2 tsp 3 tsp 4tsp 5 tsp 6 tsp 7 tsp 8tsp 9 tsp 5 tbsp 10tbsp 151bsp 20 1 /4 tbsp 25114 tbsp 30 114 tbsp 35 1 /4 tbsp 40 1/2 tbsp 45 1/2 tbsp 50 1/2 tbsp 12" 300mm 2tsp 4tsp 6 ISP 8tsp 5tbsp 6tbsp 7 tbsp 8tbsp 9tbsp 10 tbsp 20 114 tbsp 30 1/4 tbsp 40 1/2 tbsp 50 112 tbsp 60 112 tbsp 70 3/4 tbsp 80 314 lbsp 91 tbsp l01 tbsp Recognition is further expressed to the following DOH personnel who compassionately nurtured the spirit of collaborative effort in the final editing of the manuscript: 1. Dr. Manuel G. Roxas Undersecretary and Chief of Staff 2. Dr. Carmencita Noriega-Reodica Undersecretary for Office of Public Health Services 3. Atty. Nicolas Lutera Ill Director, Health Policy Development Office 4. Mrs. Melahi Pons Director, Health Policy Development Office 5. Engr. Victor V. Sabandeja Chief, Environmental Sanitation Division Environmental Health Service The Oepartment of Health enjoins all agencies especially the Local Government Executives in meeting the demands and challenges for a healthful living environment as we enter our journey for economic development under President Fidel Ramas' vision for Philippines 2000. /~,~' HILARIOfrL RAMIRO/ JR., MD, MHA Secretary of Health ACKNOWLEDGMENT The Department of Health is deeply indebted and express sincere appreciation to 0(. Mario C. Villaverde, Director of the Envîronment Health Service for his role in bringing these implementing rules and regulations (IRR) from concept to reality. The Policy, Standards and Regulation Section, headed by Engr. An­ tonio A. Hormillosa and his technical staff for theîr enduring com­ mitment in constantly nurturing this IRR from the beginning and perceptiveness along the way together with Engr. Joselito M. Riego de Dies for his patience in developing the first draft are worth men­ tioning. Deep sense of gratitude is also expressed to the agencies, associa­ tions and organizations who shared their insights and experiences durinij the consultative dialogues and series of public hearings na­ tionw1âe. Their struggles, arguments and even their temporary set­ backs have greatly influenced the finalization of this IRR in our quest to formulate, implement and enforced doable sanitation laws. The following agencies, associations and organizations pursued their on­ going interest, valuable comments and contributions to these ef­ forts: 1. City/Municipal Health Offices of Baguio City, Cavite City, Iloilo City, Lucban, Quezon , Davao City, Malay, Aklan, and General Santos City 2. Commision on Human Rights 3. Department of Health Reg ion al Offices 4. Department of lnterior and Local Government 5. Department of Works and Highways 6. Environmental Management Bureau, OENR 7. Housing and Land Use Regulatory Board 8. Local Water Utilities Administration 9. Metro Manila Development Authority 1 O. Metropo\itan Waterworks and Sewerage System 11. National Association of Master Plumbers 12. Philippine Association of Water Districts 13. Philippine National Police 14. Philippine Society of Sanitary Engineers 15. Philippine Waterworks Association of the Philippines 16. Provincial Health Offices of Cavite, Quezon, Laguna, Aklan, Iloilo, Antique, Nueva Ecija, Marinduque, Benguet 17. Public Utility Service$ Office, Baguio City 18. United Nations Children's Fund (UNICEF) 19. Water Districts of Metro Iloilo, Kalibo, Laguna, Baguio City, La Trinidad, Davao City, General Santos City